Honest advice: free yourself from that and live a happier life. And I don't mean it in an "ignorance is bliss" kind of way, on the contrary really. Otherwise, to be consistent, you'd need to

- demand your salary be paid in salt

- have all arenas be covered in sand

- calculate only with pebbles

- only allow xylophones made of wood

And so on. It's a tiring journey to embark on -- oops, one can only embark on ships...